MCQOPTIONS
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MCQOPTIONS
This section includes 17 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The blend is said to be additive for the mechanical property if the term (I) in the empirical formula is ____________ |
| A. | Imaginary |
| B. | Positive |
| C. | Negative |
| D. | Zero |
| Answer» E. | |
| 2. |
The blend is said to be synergistic for the mechanical property if the term (I) in the empirical formula is? |
| A. | Zero |
| B. | Positive |
| C. | Negative |
| D. | Imaginary |
| Answer» C. Negative | |
| 3. |
Fine dispersions of polymers in water are mixed and coagulated to give ____________ |
| A. | Mechanical blends |
| B. | Solution-cast blends |
| C. | Latex blends |
| D. | Chemical blends |
| Answer» D. Chemical blends | |
| 4. |
Cross-linked polymers are swollen with a different monomer, which results in ____________ |
| A. | Mechanical blends |
| B. | Solution-cast blends |
| C. | Latex blends |
| D. | Chemical blends |
| Answer» E. | |
| 5. |
The immiscible blends exhibit ____________ |
| A. | Excellent mechanical properties |
| B. | Poor mechanical properties |
| C. | Poor chemical properties |
| D. | Intermediate chemical properties |
| Answer» C. Poor chemical properties | |
| 6. |
For amorphous and semi-crystalline polymers, mixing leads to the formation of ____________ |
| A. | Mechanical blends |
| B. | Solution-cast blends |
| C. | Latex blends |
| D. | Chemical blends |
| Answer» B. Solution-cast blends | |
| 7. |
Polymers are dissolved in common solvent to give ____________ |
| A. | Mechanical blends |
| B. | Solution-cast blends |
| C. | Latex blends |
| D. | Chemical blends |
| Answer» C. Latex blends | |
| 8. |
The physical mixture of two or more polymers that are not linked by covalent bonds is called ____________ |
| A. | Polymerisation |
| B. | Dendrimer |
| C. | Polyblend |
| D. | Multiblend |
| Answer» D. Multiblend | |
| 9. |
THE_BLEND_IS_SAID_TO_BE_SYNERGISTIC_FOR_THE_MECHANICAL_PROPERTY_IF_THE_TERM_(I)_IN_THE_EMPIRICAL_FORMULA_IS?$ |
| A. | Zero |
| B. | Positive |
| C. | Negative |
| D. | Imaginary |
| Answer» C. Negative | |
| 10. |
The_blend_is_said_to_be_additive_for_the_mechanical_property_if_the_term_(I)_in_the_empirical_formula_is$ |
| A. | Imaginary |
| B. | Positive |
| C. | Negative |
| D. | Zero |
| Answer» E. | |
| 11. |
Fine dispersions of polymers in water are mixed and coagulated to giv? |
| A. | Mechanical blends |
| B. | Solution-cast blends |
| C. | Latex blends |
| D. | Chemical blends |
| Answer» D. Chemical blends | |
| 12. |
(PPO + PS) polyblend is commercially available engineering plastic Noryl (General Electric). |
| A. | True |
| B. | False |
| Answer» B. False | |
| 13. |
Cross-linked polymers are swollen with a different monomer, which results in |
| A. | Mechanical blends |
| B. | Solution-cast blends |
| C. | Latex blends |
| D. | Chemical blends |
| Answer» E. | |
| 14. |
The immiscible blends exhibit |
| A. | Excellent mechanical properties |
| B. | Poor mechanical properties |
| C. | Poor chemical properties |
| D. | Intermediate chemical properties |
| Answer» C. Poor chemical properties | |
| 15. |
For amorphous and semi-crystalline polymers, mixing leads to the formation of |
| A. | Mechanical blends |
| B. | Solution-cast blends |
| C. | Latex blends |
| D. | Chemical blends |
| Answer» B. Solution-cast blends | |
| 16. |
Polymers are dissolved in common solvent to give |
| A. | Mechanical blends |
| B. | Solution-cast blends |
| C. | Latex blends |
| D. | Chemical blends |
| Answer» C. Latex blends | |
| 17. |
The physical mixture of two or more polymers that are not linked by covalent bonds is called |
| A. | Polymerisation |
| B. | Dendrimer |
| C. | Polyblend |
| D. | Multiblend |
| Answer» D. Multiblend | |